Wavion Technology

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Wavion’s latest family of outdoor Wi-Fi base stations is the first to support spatially adaptive Beamforming and 802.11n 3x3:3 MIMO with three spatial data streams, delivering unmatched reach and capacity. Moreover, Wavion’s unique and powerful Interference Immunity Suite makes the base stations the most robust Wi-Fi solution for the noisy and congested electromagnetic environments characterizing the unlicensed 2.4 GHz and 5 GHz bands.

The Challenge

We are living in the midst of the information age. Along side the explosion in information, comes our desire to be able to access it at any time, in any place. Wi-Fi solutions are highly appealing since they do not require cumbersome, wired infrastructure and enjoy the wide availability off-the-shelf Wi-Fi enabled clients embedded in smartphones, tablets, PDAs and low-cost CPEs. However, there are a number of key challenges that need to be met in order to create a truly effective outdoor and metro Wi-Fi solution:

• Outdoors metro Wi-Fi environments present much tougher electromagnetic challenges than indoors environment, including much higher levels of interference, much higher multipath delay-spread, and much faster moving objects and users such as cars. Also, the outdoor multipath environment is significantly poorer than that of the indoors environment, having much lower angel-spread, making the channel propagation matrix much more correlated.
  
  
• Most metro Wi-Fi base stations currently are based on the first generation of the 11n chips. These products clearly fail to deliver the promised capacity increase of 802.11n in real outdoor environments. They do not cope effectively with the high interference level and with the challenging multipath environment. The result is dense access point deployment and costly infrastructure in addition to a low service quality network plagued by spotty coverage.

Wavion's solution

The new WBSn family was specially designed for the harsh outdoor environment and leverages Wavion's over a decade of experience in multiple-antenna technology. The WBSn family is the first to support spatially adaptive Beamforming and 802.11n 3x3:3 MIMO with three spatial data streams, in conjunction with a unique and powerful Interference Immunity Suite.

• Utilizes a High Gain Diversely Polarized (HGDP) antenna array and multiple radio transceivers, in conjunction with custom-designed application-specific integrated circuit (ASIC) and embedded software.
• Leverages spatially adaptive per-packet Beamforming on TX and Rx together with 3x3:3 MIMO with three spatial streams, enabling up to 450 Mbps throughput.
• Incorporates a powerful Interference Immunity Suite which includes the inherent Beamforming ability to suppress interference, the Dynamic Interference Handling (DIH) capability, the Automatic Channel Selection (ACS) algorithm, the Wavion Rate Adaptation (WARA) algorithm, and the Down Tilted Antennas (DTA)

The result is the best performance in terms of throughput, range, indoor penetration and interference mitigation, which ensures that service providers are able to offer cost effective, top quality service. Service providers can save on capital and operating expenses, accelerating return on investment and making metro and rural wireless services affordable for a broad range of municipalities and enterprises.

Advantages:

• Superior coverage
• Increased capacity
• Improved indoor signal penetration
• Interference immunity

Wavion technology advantages

Coverage
The High Gain Diversely Polarized (HGDP) antenna array and the Beamforming technology increase significantly the coverage area provided by WBSn, up to three times that of conventional Wi-Fi Access Points. The superior range and uniform coverage means that the network can be scaled to reach a larger group of users, which in turn yields higher subscriber revenues at lower costs.

 

Wavion's technology provides users with a powerful, high quality signal that is not dependent on line-of-sight positioning, and is highly resistant to interference. This results in a much improved uniform coverage with far fewer dead spots, which allows the operator to provide high-quality service to all the customers in the area.

Capacity
The spatially adaptive Beamforming and the 3x3:3 MIMO technologies increase significantly, the capacity provided by WBSn, up to three times that of conventional Wi-Fi Access Points. The capacity increase of the MIMO depends on the number of antennas of the client devices and requires a device with 3 antennas and 3x3:3 MIMO capabilities to achieve the maximum capacity.

This capacity increase, allows the operator to offer faster services, as well as increasing the number of clients that can be served per base station.

Indoor signal penetration
Indoor penetration is very susceptible to multipath and signal reflection. Since Wavion’s spatially adaptive Beamforming technology increase the bi-directional link budget and exploits multipath to its advantage, it has a superior ability to penetrate buildings and walls compared to any conventional access points. This enables network operators to offer access in places such as residences, hotels and education campuses. In addition, deeper indoor penetration makes self-install service a reality by reducing the need for separate outdoor CPEs.

Interference immunity
The WBSn’s Interference Immunity Suite enables robust operation in highly congested and interfered environments characterizing outdoor deployments. It enables operators to mount the base stations in city centers where the level of interference is usually high, as well as co-locating the base stations on existing cellular towers so as to exploit the available infrastructure.